20810 pages 195-260.qxd:s9 dynamic restraints 28/9/11 … restraints... · dynamic restraints the...

195

8

DYNAMIC RESTRAINTS

Rigid Struts

HydraulicSnubbers

20810 Pages 195-260.qxd:S9 Dynamic Restraints 28/9/11 12:47 95

196

DYNAMIC RESTRAINTS

Pipework systems which are subject to purely static loadingare generally supported on single acting vertical supportssuch as a hanger rod and pipe clamp or sliding base and, ifthe pipework is subject to change in temperature, some orall of these vertical supports may be spring supports, eithervariable or constant effort type. A supporting arrangementsuch as this is generally not suitable for pipework subjectto dynamic loading.

Dynamic loading may occur for a number of reasons.Unsteady flow, such as that caused by valve closure,produces dynamic forces and is referred to as waterhammer. In an earthquake, a piping system is alsosubject to dynamic forces.

Where the pipework system is subject to dynamic forces,vibration of the pipework will occur. This may beinjurious to the pipework and connected equipmentand plant. Pipework systems which are supported onsingle acting vertical restraints and springs with nolateral restraint will have low natural frequencies ofvibration and will experience large dynamic deflectionswhen subject to vibration; this will generally beunacceptable. Pipework stress analysis either byresponse spectrum or time history analysis can be usedto show the need for dynamic restraints.

In pipework systems which are subject to dynamic loading, it may be necessary to use rigid struts, whichact in both directions, rather than hanger rods, whichonly support downward acting loads. Rigid struts arealso used to provide lateral restraint where this isrequired. Snubbers are used where dynamic restraint isrequired, but the pipe has to be allowed to move thermally.

RIGID STRUT — FIG. 511

Pipe Supports Group manufacture a comprehensiverange of rigid struts covering loading up to more than90 tonnes with lengths up to 6 metres (12’8”). The strutsare designed for ease of use and to provide acost-effective dynamic restraint. Rigid struts use sphericalbearings to permit angulation and they provide lengthadjustment of +/- 100mm (4”) by means of right and lefthand threaded rod ends so that the adjustment can bemade without disconnection. Maximum loadings aretabulated in kilograms, Newtons and pounds andweights and axial stiffnesses are also given. Havingselected the size of strut that you need, the numberingsystem used makes the selection of the associatedwelding clevis and clamp a simple matter.

WELDING CLEVIS — FIG. 512

The welding clevis provides means of attachment of rigidstruts and snubbers to steelwork. The welding clevis isdesigned to provide +/- 5 degrees and +/- 90 degrees ofangulation as shown below.

SNUBBER — FIG. 516 AND FIG. 517

Pipe Supports Group’s range of hydraulic snubbers coverloadings up to more than 85 tonnes with cylinder strokeup to 20” (508mm). The snubbers are to a well provendesign; the numbering system and sizes of end fittingsare compatible with the other dynamic restraint components. The Fig. 517 Adjustable Strut Snubberincorporates a tubular extension with a length adjustment of +/- 50 mm. The Fig. 516 Short Snubber isfor use where available space is limited; there is noadjustment of length other than by moving the piston.

The hydraulic snubber is a standard 3000 psi hydrauliccylinder with a built-in fluid reservoir. The fluid is portedvia the end blocks to the external valve block. The valveblock contains two regulating valves with bleedgrooves. The connection of the manifold to the reservoirand the valve block to the manifold is by use of “O”ring seals.

In operation, normal thermal expansion of the pipeworkcauses the piston rod to extend or retract at a velocity lessthan the lock-up velocity. In this situation the snubber isinactive and the device has minimal effect on thebehaviour of the pipework. In a dynamic situation, shockor vibration forces which cause the rate of displacement ofthe piston to exceed the lock-up velocity will cause theregulating valves to close and the snubber limits the velocity. The resistive capacity of the unit transfers theforce to the structure and reduces the possibility of over-stressing the pipe or associated equipment connections.

The function of the bleed grooves is to control thevelocity after lock-up. For prolonged thrust, the bleedgrooves are eliminated and the unit becomes a rigidstrut during lock-up.

CLAMPS FOR RIGID STRUTSAND SNUBBERSFIG. 513, FIG. 514 AND FIG. 515

Pipe Supports Group offer a very comprehensive rangeof clamps for rigid struts and Snubbers. The Fig. 513clamp is a single plate stiff clamp incorporating asheathed U-bolt. The Fig. 514 clamp is a double platestiff clamp, again incorporating a single sheathed U-boltand having the axis of the connecting pin parallel to

10º

Direction of Loading

20810 Pages 195-260.qxd:S9 Dynamic Restraints 28/9/11 12:47 Page 196

197

DYNAMIC RESTRAINTS

the axis of the pipe. The Fig. 515 clamp is a conventional type pipe clamp. It should be notedthat when using type 515 clamps, because of thetolerance on pipe outside diameter, it may be necessary to use shim stock between the pipe andclamp to grip the pipe tightly and provide gooddynamic restraint.

All three types of clamps use close tolerance loadpins and are designed to operate within a 10degree cone of load application.

The clamps are designed in four temperature rangesto suit maximum design temperatures of 400 ºC(752 ºF), 490 ºC (914 ºF), 530 ºC (986 ºF), and 570 ºC(1058 ºF). Maximum loadings and pin sizes arecompatible with those for the struts and snubbers.

SELECTION — RIGID STRUTS

Rigid struts are selected on the basis of maximumapplied load and length between pin centres. Theloading shown at 1 metre (39.4”) pin centres is themaximum applicable for the size of strut inquestion. Loadings at longer lengths are also shownat 1 metre intervals. For intermediate lengths,maximum loadings can be derived by interpolation.Do not specify strut sizes where no loading is shownfor the required length. If a minimum stiffness ofrigid strut is required, make reference to thetabulation of stiffnesses. The lengths of rigid strutsshould be such that the maximum angulation is notexceeded, the attachment can be offset oninstallation if necessary to help achieve this.

SELECTION — SNUBBERS

Determine the minimum required stroke by takingthe anticipated design movement and adding anallowance for excess travel. This allowance shouldnormally be at least 20% of the anticipated designmovement. Then select a snubber where thecylinder stroke is greater than or equal to theminimum required stroke and the applied loadingsin tension and compression are less than theallowable maximum loadings in tension andcompression for the size and length of snubber asshown in the catalogue. For intermediate lengths,allowable compressive loadings may be determinedby interpolation. The length of the snubber must besuch that the maximum angulation is not exceeded.To calculate the required closed centres for thesnubber, use the following formulae:

Closed Centres = Installed Centres — X

where

X = (Stroke - Design Movement in Extension) / 2

or

X = (Stroke + Design Movement in Compression) / 2

This method will result in the spare travel beingdistributed evenly on either side of the designmovement.

SELECTION — WELDING CLEVIS

Welding clevises are selected to suit the size of strutor snubber: e.g. for rigid strut Fig. 511-4 or snubberFig. 517-4-10, use welding clevis Fig. 512-4.

SELECTION — PIPE CLAMP FORRIGID STRUT AND SNUBBER

1) Find the page relating to the appropriate pipesize.

2) Find the section relating to clamp maximumtemperature just greater than or equal to thepipework temperature.

3) Look at the clamp part numbers; the numberafter the pipe size is the clamp load designationwhich corresponds to the strut or snubber size;e.g. for 150 NB pipe at 500 ºC and using rigidstrut size 3, choice of clamps is:

Fig. 513-150-3-530

Fig. 514-150-3-530

Fig. 515-150-3-530

You may select any of the above 3 clamps.

In most circumstances, Fig. 515 clamps will be the leastexpensive and Fig. 514 clamps the most expensive.

STANDARD FEATURES — RIGID STRUT

1) A choice of eleven standard sizes.

2) Length adjustment of +/- 100mm withoutdisconnection.

3) Sight holes to check thread engagement.

4) Painted finish — one coat of high-build acrylicprimer with threaded parts electro-zinc plated.

5) +/- 5 degrees permissible angulation.

OPTIONAL FEATURES — RIGID STRUT

1) Painted in accordance with customer’s ownspecification. Threaded parts electro-zinc plated.’

STANDARD FEATURES — WELDING CLEVIS

1) +/- 5 degrees and +/- 90 degrees permissibleangulation as shown.

2) Painted finish — one coat of zinc phosphateprimer.

3) Designed to suit maximum strut and snubberloadings.


198

DYNAMIC RESTRAINTS

STANDARD FEATURES — HYDRAULIC SNUBBER1) Offers little resistance to normal thermal

movement.2) Compact — furnished as a complete functional

unit.3) Can be used in compression or in tension.4) Has a built-in reservoir with a transparent

window for viewing fluid level.5) No external piping — unit is completely

manifolded.6) Units have special fluid and seals suitable for

installation in radiation areas.7) Assessment of travel position by measuring the

length of exposed piston rod.8) Painted finish – 1 coat of two-pack surface tol-

erant epoxy mastic primer to 125 microns DFTand 1 coat of polyurethane finish paint to 50microns DFT, colour Purple/Red with threadeditems electro-zinc plated.

9) Chromium plated piston rod.

OPTIONAL FEATURES — HYDRAULIC SNUBBER1) Boot or gaiter covering the exposed piston rod.2) Direct reading travel scale.3) Painted finish — 2 coats of two-pack surface

tolerant epoxy mastic primer to 250 micronsDFT and 1 coat of polyurethane finish paint to50 microns DFT, colour Purple/Red with thread-ed items electro-zinc plated.

STANDARD FEATURES — CLAMPS1) Cost-effective designs to suit the standard strut

and snubber sizes.2) Choice of three styles of clamp.3) Loading within a 10 degree cone of application

of force.4) Standard finish — self colour.

OPTIONAL FEATURES — CLAMPS1) Hot dipped galvanized finish.2) Corrosion resistant paint finish.3) High temperature paint finish.

ORDERING INFORMATION:

RIGID STRUTSpecify part number and pin to pin dimension. Ifapplicable, specify any optional features.

WELDING CLEVISSpecify part number. If applicable, specify anyoptional features.

HYDRAULIC SNUBBERSpecify part number, installed pin to pin dimensionand design movement in tension or compression.Specify whether the loading is dynamic bi-directional,e.g. seismic or water hammer, or sustainedunidirectional, e.g. relief valve discharge. If applicable,specify any optional features.

PIPE CLAMP FOR RIGID STRUT AND SNUBBERSpecify part number. If applicable, specify anyoptional features.

SPECIAL ITEMSIn addition to the range of standard items shown inthis catalogue, we design and manufacture dynamicrestraints for applications not covered by the standarddesigns shown. Examples of special items are:1) Stainless steel clamps.2) Riser clamps for rigid struts.3) Clamps for rigid struts with inclined loading.4) Double clamps.

MATERIAL SPECIFICATIONS* — CLAMPS FOR RIGID STRUTS AND SNUBBERSClamps for use up to 400 ºCItem UK Material US MaterialClamp Body BS EN10025 Grade S275JR ASTM A36Clamp Bolts BS 4190 Grade 4.6 ASTM A307 Grade BU-Bolt BS EN10025 Grade S275JR ASTM A36Nuts BS 4190 Grade 4 ASTM A563 Grade APin BS 970 Grade 709M40“T” ASTM A193 Grade B7Spacers (Clamp) BS 1387 ASTM A106 Grade BSpacers (Pin) BS 970 Grade 230M07 AISI 1213

Clamps for use in the Range 400 ºC to 530 ºCItem UK Material US MaterialClamp Body BS EN10028-2 Grade 13CrMo4-5 ASTM A387 Grade 12 Class 2Clamp Bolts BS 4882 Grade B16 ASTM A193 Grade B16U-Bolt BS EN10028-2 Grade 13CrMo4-5 ASTM A182 Grade F12 Class 2Nuts BS 4882 Grade 4 ASTM A194 Grade 4Pin BS 970 Grade 709M40“T” ASTM A193 Grade B7Spacers (Clamp) BS 3604 Grade 620–440 ASTM A335 Grade P12Spacers (Pin) BS 970 Grade 230M07 AISI 1213

Clamps for use in the Range 530 ºC to 570 ºCItem UK Material US MaterialClamp Body BS EN10028-2 Grade 10CrMo9-10 ASTM A387 Grade 22 Class 2Clamp Bolts BS 4882 Grade B16 ASTM A193 Grade B16U-Bolt BS EN10028-2 Grade 13 CrMo4-5 ASTM A182 Grade F12 Class 2Nuts BS 4882 Grade 4 ASTM A194 Grade 4Pin BS 970 Grade 709M40“T” ASTM A193 Grade B7Spacers (Clamp) BS 3604 Grade 620-440 ASTM A335 Grade P12Spacers (Pin) BS 970 Grade 230M07 AISI 1213

* Equivalent Indian, Japanese and Chinese specifications are shown on page 5. Detailed erection and maintenance procedures for rigid struts and hydraulic snubbers are available on request.


C

Ø A PIN

L ± 100 mm

Ø B

Ø D

EF

C

G H

Ø A

Fig. 511 Rigid Strut Fig. 512 Welding Clevis

RIGID STRUT AND WELDING CLEVIS kgf, mm

199

LOAD CARRYING CAPACITIES OF RIGID STRUTSFig. 511 Rigid Struts

WEIGHTS OF RIGID STRUTSFig. 511 Rigid Struts

DIMENSIONS OF RIGID STRUTS

Fig. 511 Rigid Struts

AXIAL STIFFNESSES Fig. 511 Rigid Struts in Tension

LOAD CARRYING CAPACITIES OF WELDING CLEVISESFig. 512 Welding Clevis

DIMENSIONS OF WELDING CLEVISES

Fig. 512 Welding Clevis

WEIGHTSOF WELDING CLEVISES


PIN DIA.SIZE A DIA. B C DIA. D L (Min.)* L (Max.)

mm mm mm mm mm mm

511-1 10 38 9 21 442 2000

511-2 10 38 9 27 456 3000

511-3 15 50 12 42 510 4000

511-4 20 70 16 48 552 5000

511-5 25 82 20 60 604 6000

511-6 35 110 25 73 670 6000

511-7 40 130 28 89 722 6000

511-8 50 150 35 114 826 6000

511-9 70 220 49 141 980 6000

511-10 80 250 55 168 1054 6000

511-11 90 280 60 219 1136 6000

Max. Load Max. Load Max. Load Max. Load Max. Load Max. LoadSIZE @ L= 1m @ L= 2m @ L= 3m @ L= 4m @ L= 5m @ L= 6m

kgf kgf kgf kgf kgf kgf

511-1 423 171

511-2 985 356 158

511-3 2125 2125 1034 567

511-4 4293 3708 1664 948 552

511-5 6324 6324 3632 2069 1288 809

511-6 12754 12414 7867 4448 2811 1913

511-7 18132 18132 15042 8860 5672 3875

511-8 25524 25524 25524 20643 13911 9812

511-9 55135 55135 50963 39364 27952 20225

511-10 70330 70330 70330 64670 50450 38065

511-11 90785 90785 90785 90785 90785 84373

Stiffness Stiffness Stiffness Stiffness Stiffness Stiffness StiffnessSIZE @ L = @ L = @ L = @ L = @ L = @ L = @ L =

Min. 1m 2m 3m 4m 5m 6mkgf/mm kgf/mm kgf/mm kgf/mm kgf/mm kgf/mm kgf/mm✕ 1000 ✕ 1000 ✕ 1000 ✕ 1000 ✕ 1000 ✕ 1000 ✕ 1000

511-1 6.6 3.1 1.6

511-2 9.5 4.4 2.2 1.5

511-3 16.8 9.9 5.4 3.7 2.8

511-4 22.2 13.1 6.9 4.7 3.5 2.8

511-5 30.5 19.0 9.7 6.5 4.9 3.9 3.3

511-6 43.8 29.7 15.0 10.0 7.6 6.0 5.0

511-7 57.7 41.4 20.5 13.6 10.2 8.2 6.8

511-8 79.6 64.6 31.0 20.4 15.2 12.1 10.0

511-9 117.3 114.0 47.8 30.3 22.1 17.4 14.4

511-10 143.9 154.4 65.4 41.5 30.4 23.9 19.8

511-11 183.7 214.9 95.6 61.5 45.3 35.9 29.7

SIZE Max. Load

kgf

512-1 423

512-2 985

512-3 2125

512-4 4293

512-5 6324

512-6 12754

512-7 18132

512-8 25524

512-9 55135

512-10 70330

512-11 90785

SIZE WEIGHT

kgf

512-1 0.17

512-2 0.17

512-3 0.41

512-4 0.89

512-5 1.9

512-6 4.3

512-7 6.8

512-8 13.2

512-9 32.4

512-10 48.5

512-11 67.4

PIN SIZE DIA. C E F G H

Amm mm mm mm mm mm

512-1 10 9 30 12.5 30 25

512-2 10 9 30 12.5 30 25

512-3 15 12 38 20 35 40

512-4 20 16 52 25 45 50

512-5 25 20 62 35 55 70

512-6 35 25 80 50 70 100

512-7 40 28 98 50 90 100

512-8 50 35 115 65 110 130

512-9 70 49 160 90 145 180

512-10 80 55 190 90 180 180

512-11 90 60 210 105 195 210

*For reduced adjustment of +/- 50mm, L(Min.) can be reduced by 150mm

WEIGHT WEIGHT WEIGHT WEIGHT WEIGHT WEIGHT WEIGHT

SIZE @ L = @ L = @ L = @ L = @ L = @ L = @ L =Min. 1m 2m 3m 4m 5m 6m

kgf kgf kgf kgf kgf kgf kgf

511-1 0.8 1.6 2.8

511-2 1.1 2.0 3.7 5.4

511-3 2.8 5.0 9.5 13.9 18.4

511-4 4.5 6.9 12.3 17.8 23.2 28.6

511-5 7.1 10.1 17.6 25.0 32.5 40.0 47.5

511-6 12.8 16.6 28.0 39.4 50.9 62.3 73.7

511-7 20.0 24.2 39.5 54.8 70.1 85.4 100.7

511-8 34.6 38.5 60.8 83.2 105.5 127.9 150.2

511-9 78.3 78.9 109.9 140.9 171.8 202.8 233.8

511-10 112.6 110.3 153.0 195.6 238.2 280.8 323.4

511-11 175.3 166.5 231.2 295.9 360.7 425.4 490.1


C

Ø A PIN

L ± 100 mm

Ø B

Ø D

EF

C

G H

Ø A

Fig. 511 Rigid Strut Fig. 512 Welding Clevis

RIGID STRUT AND WELDING CLEVIS N, mm

200













N N N N N N N

511-1 8 15 28

511-2 11 20 36 53

511-3 27 49 93 137 181

511-4 44 68 121 174 227 280

511-5 70 99 172 246 319 393 466

511-6 126 163 275 387 499 611 723

511-7 196 237 387 537 687 837 987

511-8 339 377 596 816 1035 1254 1473

511-9 768 774 1078 1381 1685 1989 2293

511-10 1105 1082 1500 1918 2336 2754 3172

511-11 1719 1633 2267 2902 3537 4172 4806

Stiffness Stiffness Stiffness Stiffness Stiffness Stiffness Stiffness


kN/mm kN/mm kN/mm kN/mm kN/mm kN/mm kN/mm

511-1 64 31 16

511-2 93 43 22 15

511-3 165 98 53 37 28

511-4 218 129 67 46 35 28

511-5 299 186 95 64 48 39 32

511-6 430 291 147 99 74 59 49

511-7 566 406 201 134 100 80 67

511-8 781 633 304 200 149 118 98

511-9 1150 1118 469 297 217 171 141

511-10 1411 1515 641 407 298 235 194

511-11 1802 2108 937 603 444 352 291

SIZE Max. Load

kN

512-1 4.15

512-2 9.66

512-3 20.8

512-4 42.1

512-5 62.0

512-6 125

512-7 178

512-8 250

512-9 541

512-10 690

512-11 890

SIZE WEIGHT

N

512-1 1.7

512-2 1.7

512-3 4.1

512-4 8.8

512-5 19

512-6 43

512-7 66

512-8 130

512-9 317

512-10 476

512-11 661


Amm mm mm mm mm mm

512-1 10 9 30 12.5 30 25

512-2 10 9 30 12.5 30 25

512-3 15 12 38 20 35 40

512-4 20 16 52 25 45 50

512-5 25 20 62 35 55 70

512-6 35 25 80 50 70 100

512-7 40 28 98 50 90 100

512-8 50 35 115 65 110 130

512-9 70 49 160 90 145 180

512-10 80 55 190 90 180 180

512-11 90 60 210 105 195 210

Max. Load Max. Load Max. Load Max. Load Max. Load Max. LoadSIZE @ L= 1m @ L= 2m @ L= 3m @ L= 4m @ L= 5m @ L= 6m

kN kN kN kN kN kN

511-1 4.15 1.67

511-2 9.7 3.49 1.55

511-3 20.8 20.8 10.1 5.56

511-4 42.1 36.4 16.3 9.30 5.41

511-5 62.0 62.0 35.6 20.3 12.6 7.94

511-6 125 122 77.1 43.6 27.6 18.8

511-7 178 178 148 86.9 55.6 38.0

511-8 250 250 250 202 136 96.2

511-9 541 541 500 386 274 198

511-10 690 690 690 634 495 373

511-11 890 890 890 890 890 827


mm mm mm mm mm mm

511-1 10 38 9 21 442 2000

511-2 10 38 9 27 456 3000

511-3 15 50 12 42 510 4000

511-4 20 70 16 48 552 5000

511-5 25 82 20 60 604 6000

511-6 35 110 25 73 670 6000

511-7 40 130 28 89 722 6000

511-8 50 150 35 114 826 6000

511-9 70 220 49 141 980 6000

511-10 80 250 55 168 1054 6000

511-11 90 280 60 219 1136 6000

*For reduced adjustment of +/- 50mm, L(Min.) can be reduced by 150mm


C

Ø A PIN

L ± 4"

Ø B

Ø D

Fig. 511 Rigid Strut

RIGID STRUT AND WELDING CLEVIS lbs, in

EF

C

G H

Ø A


201











Max. Load Max. Load Max. Load Max. Load Max. Load Max. LoadSIZE @ L= 39in @ L= 79in @ L= 118in @ L= 157in @ L= 197in @ L= 236in

lbs lbs lbs lbs lbs lbs

511-1 933 376

511-2 2173 786 349

511-3 4685 4865 2279 1251

511-4 9465 8174 3669 2091 1217

511-5 13942 13942 8006 4561 2840 1784

511-6 28117 27368 17343 9807 6197 4217

511-7 39974 39974 33162 19534 12504 8544

511-8 56269 56269 56269 45509 30668 21632

511-9 121552 121552 112352 86781 61623 44589

511-10 155050 155050 155050 142572 111223 83919

511-11 200144 200144 200144 200144 200144 186010


in in in in in in

511-1 0.39 1.50 0.35 0.83 17.4 78.7

511-2 0.39 1.50 0.35 1.06 18.0 118.1

511-3 0.59 1.97 0.47 1.65 20.1 157.5

511-4 0.79 2.76 0.63 1.89 21.7 196.9

511-5 0.98 3.23 0.79 2.36 23.8 236.2

511-6 1.38 4.33 0.98 2.87 26.4 236.2

511-7 1.57 5.12 1.10 3.50 28.4 236.2

511-8 1.97 5.91 1.38 4.49 32.5 236.2

511-9 2.76 8.66 1.93 5.55 38.6 236.2

511-10 3.15 9.84 2.17 6.61 41.5 236.2

511-11 3.54 11.02 2.36 8.62 44.7 236.2


SIZE @ L = @ L = @ L = @ L = @ L = @ L = @ L =Min. 39in 79in 118in 157in 197in 236in

lbs lbs lbs lbs lbs lbs lbs

511-1 1.9 3.4 6.2

511-2 2.4 4.5 8.2 11.9

511-3 6.2 11.0 20.9 30.7 40.6

511-4 9.9 15.2 27.2 39.1 51.1 63.0

511-5 15.6 22.2 38.7 55.2 71.7 88.2 104.8

511-6 28.3 36.6 61.8 87.0 112.1 137.3 162.5

511-7 44.0 53.4 87.1 120.8 154.5 188.2 222.0

511-8 76.2 84.8 134.1 183.4 232.6 281.9 331.2

511-9 172.6 173.9 242.2 310.5 378.8 447.1 515.4

511-10 248.3 243.2 337.2 431.2 525.1 619.1 713.0

511-11 386.4 367.0 509.7 652.4 795.1 937.8 108.5

Stiffness Stiffness Stiffness Stiffness Stiffness Stiffness Stiffness

SIZE @ L = @ L = @ L = @ L = @ L = @ L = @ L =

Min. 39in 79in 118in 157in 197in 236in

kips/in kips/in kips/in kips/in kips/in kips/in kips/in

511-1 368 176 91

511-2 534 248 125 83

511-3 943 557 303 208 159

511-4 1245 736 385 261 197 158

511-5 1710 1064 545 366 276 221 184

511-6 2453 1662 841 563 423 339 282

511-7 3231 2317 1149 764 572 457 381

511-8 4460 3616 1733 1140 849 676 562

511-9 6566 6384 2678 1694 1239 977 806

511-10 8056 8649 3661 2322 1700 1341 1107

511-11 10288 12035 5352 3442 2536 2008 1662

SIZE Max. Load

lbs

512-1 933

512-2 2173

512-3 4685

512-4 9465

512-5 13942

512-6 28117

512-7 39974

512-8 56269

512-9 121552

512-10 155050

512-11 200144


Ain in in in in in

512-1 0.39 0.35 1.18 0.49 1.18 0.98

512-2 0.39 0.35 1.18 0.49 1.18 0.98

512-3 0.59 0.47 1.50 0.79 1.38 1.57

512-4 0.79 0.63 2.05 0.98 1.77 1.97

512-5 0.98 0.79 2.44 1.38 2.17 2.76

512-6 1.38 0.98 3.15 1.97 2.76 3.94

512-7 1.57 1.10 3.86 1.97 3.54 3.94

512-8 1.97 1.38 4.53 2.56 4.33 5.12

512-9 2.76 1.93 6.30 3.54 5.71 7.09

512-10 3.15 2.17 7.48 3.54 7.09 7.09

512-11 3.54 2.36 8.27 4.13 7.68 8.27

SIZE WEIGHT

lbs

512-1 0.38

512-2 0.38

512-3 0.91

512-4 2.0

512-5 4.2

512-6 9.6

512-7 14.9

512-8 29.2

512-9 71.3

512-10 107.0

512-11 148.5

*For reduced adjustment of +/- 2in, L(Min.) can be reduced by 6in


L (No adjustment)

DE

ØB

C

ØA PIN

L ± 50 mm

ØA PIN

DE

ØB

C

Fig. 516 Snubber (Short Type)

Fig. 517 Snubber (Adjustable Strut Type)

HYDRAULIC SNUBBER kgf, mm

202

Fig. 516 Short Snubber Fig. 517 Adjustable Strut Snubber

Cylinder Cylinder Dia. Dia. Weight Weight

Bore Stroke A B C D E L (mm) Weight L (mm) @ L = @ L =

Snubber Size Min. Max

Size

Fig.516- Fully Mid Fully Min. Min. Max.

or mm mm mm mm mm mm mm Closed Stroke Ext. kgf Fully Fully Fully kgf kgf

Fig.517- Closed Ext. Closed

1-5 20 127 10 38 9 29 73 442 506 569 6 628 755 2000 6 8

1-10 20 254 10 38 9 29 73 633 760 887 7 819 1073 2000 7 9

2-5 25 127 10 38 9 35 79 463 526 590 8 655 782 2500 8 11

2-10 25 254 10 38 9 35 79 653 780 907 9 845 1099 2500 10 12

3-5 40 127 15 50 12 32 76 518 582 645 10 723 850 4500 11 28

3-10 40 254 15 50 12 32 76 709 836 963 12 914 1168 4000 13 27

3-15 40 381 15 50 12 32 76 899 1090 1280 15 1104 1485 4000 15 28

4-5 50 127 20 70 16 38 83 572 636 699 14 783 910 5000 15 38

4-10 50 254 20 70 16 38 83 763 890 1017 17 974 1228 5000 19 40

4-15 50 381 20 70 16 38 83 953 1144 1334 20 1164 1545 5000 22 43

4-20 50 508 20 70 16 38 83 1144 1398 1652 24 1355 1863 4500 25 42

5-5 65 127 25 82 20 44 89 618 681 745 20 844 971 6000 22 60

5-10 65 254 25 82 20 44 89 808 935 1062 24 1034 1288 6000 26 63

5-15 65 381 25 82 20 44 89 999 1189 1380 29 1225 1606 6000 31 67

5-20 65 508 25 82 20 44 89 1189 1443 1697 33 1415 1923 6000 35 70

6-5 80 127 35 110 25 57 102 741 805 868 38 976 1103 6000 41 98

6-10 80 254 35 110 25 57 102 941 1068 1195 45 1176 1430 6000 49 104

6-15 80 381 35 110 25 57 102 1141 1332 1522 53 1376 1757 6000 56 109

6-20 80 508 35 110 25 57 102 1341 1595 1849 61 1576 2084 6000 64 115

7-5 100 127 40 130 28 64 108 771 835 898 48 1030 1157 6000 53 129

7-10 100 254 40 130 28 64 108 962 1089 1216 56 1221 1475 6000 61 134

7-15 100 381 40 130 28 64 108 1152 1343 1533 65 1411 1792 6000 69 140

7-20 100 508 40 130 28 64 108 1343 1597 1851 73 1602 2110 6000 78 145

8-5 125 127 50 150 35 83 127 866 930 993 88 1144 1271 6000 97 206

8-10 125 254 50 150 35 83 127 1057 1184 1311 105 1335 1589 6000 113 218

8-15 125 381 50 150 35 83 127 1247 1438 1628 121 1525 1906 6000 130 230

8-20 125 508 50 150 35 83 127 1438 1692 1946 138 1716 2224 6000 146 243

9-5 150 127 70 220 49 95 140 1025 1088 1152 142 1343 1470 6000 158 304

9-10 150 254 70 220 49 95 140 1215 1342 1469 163 1533 1787 6000 180 319

9-15 150 381 70 220 49 95 140 1406 1596 1787 184 1724 2105 6000 201 335

9-20 150 508 70 220 49 95 140 1596 1850 2104 205 1914 2422 6000 222 350

10-5 200 127 80 250 55 121 165 1192 1255 1319 277 1528 1655 6000 301 494

10-10 200 254 80 250 55 121 165 1382 1509 1636 312 1718 1972 6000 337 521

10-15 200 381 80 250 55 121 165 1573 1763 1954 348 1909 2290 6000 372 549

10-20 200 508 80 250 55 121 165 1763 2017 2271 383 2099 2607 6000 408 576

11-5 250 127 90 280 60 160 205 1346 1410 1473 501 1699 1826 6000 544 826

11-10 250 254 90 280 60 160 205 1524 1651 1778 551 1877 2131 6000 595 865

11-15 250 381 90 280 60 160 205 1702 1892 2083 602 2055 2436 6000 645 904

11-20 250 508 90 280 60 160 205 1880 2134 2388 653 2233 2741 6000 696 943


HYDRAULIC SNUBBER kgf, mm

LOAD CAPACITIES OF HYDRAULIC SNUBBERS IN TENSION AND COMPRESSION

Fig. 516 Fig. 517Short Snubber Adjustable Strut Snubber

Max.Closed

Centres Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max.

for Max. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp.

Comp. Load Load Load Load Load Load Load Load Load Load Load Load

Snubber Load = at at at at at at at at at at at at

Size Max. Max. Min. Max. Full Closed Closed Closed Closed Closed Closed Closed Closed Closed Closed Closed Closed

Fig. 516 – Cylinder Rated Closed Rated Closed Closed Rated Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. =

or Bore Cylinder Tensile Centres Comp. Centres Centres Tensile Min. 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000Fig. 517 – Size Stroke Load (L) Load (L) (L) Load mm mm mm mm mm mm mm mm mm mm mm

mm mm kgf mm kgf mm mm mm kgf kgf kgf kgf kgf kgf kgf kgf kgf kgf kgf kgf

1-5 20 127 335 442 335 628 2000 1100 335 335 211 123

1-10 20 254 335 633 211 819 2000 n/a 211 202 181 101

2-5 25 127 650 463 650 655 2500 1200 650 650 468 285 180

2-10 25 254 650 653 529 845 2500 n/a 529 514 392 244 152

3-5 40 127 1769 518 1769 723 4500 2000 1769 1769 1769 1769 1300 902 685 490 388

3-10 40 254 1769 709 1119 914 4000 n/a 1119 1103 1037 985 939 830 625 454

3-15 40 381 1769 899 568 1104 4000 n/a 568 526 483 445 412 380 350

4-5 50 127 3175 572 3175 783 5000 1900 3175 3175 3175 3078 2046 1426 1079 850 661 502

4-10 50 254 3175 763 2851 974 5000 n/a 2851 2838 2735 2656 1807 1331 992 782 574 466

4-15 50 381 3175 953 1632 1164 5000 n/a 1632 1579 1508 1449 1171 903 713 535 438

4-20 50 508 3175 1144 989 1355 4500 n/a 989 974 911 859 813 771 638 493

5-5 65 127 4990 618 4990 844 6000 2300 4990 4990 4990 4990 4436 3191 2422 1848 1463 1193 961 755

5-10 65 254 4990 808 4990 1034 6000 2100 4990 4990 4990 3997 2957 2203 1728 1351 1121 886 715

5-15 65 381 4990 999 3602 1225 6000 n/a 3602 3518 3404 3309 2631 1982 1605 1237 1039 856 671

5-20 65 508 4990 1189 2338 1415 6000 n/a 2338 2314 2209 2122 2045 1848 1478 1195 964 744 625

6-5 80 127 7983 741 7983 976 6000 2700 7983 7983 7983 7983 7983 6841 5236 4069 3197 2610 2167 1802

6-10 80 254 7983 941 7983 1176 6000 2600 7983 7983 7983 7983 6308 4736 3729 3007 2431 1999 1705

6-15 80 381 7983 1141 7983 1376 6000 2400 7983 7983 7983 7809 5786 4367 3515 2810 2249 1828 1593

6-20 80 508 7983 1341 7859 1576 6000 n/a 7859 7662 7196 5299 4144 3169 2608 2064 1775 1489

7-5 100 127 12791 771 12791 1030 6000 3000 12791 12791 12791 12791 12791 10303 8141 6384 5204 4406 3626

7-10 100 254 12791 962 12791 1221 6000 2900 12791 12791 12791 12791 12350 9627 7494 6124 4960 4172 3405

7-15 100 381 12791 1152 12791 1411 6000 2800 12791 12791 12791 12791 11461 8944 7028 5681 4712 3937 3183

7-20 100 508 12791 1343 12565 1602 6000 n/a 12565 12308 12037 10618 8284 6736 5411 4459 3699 3125

8-5 125 127 19958 866 19958 1144 6000 3800 19958 19958 19958 19958 19958 19958 18871 15425 12567 10552 9095

8-10 125 254 19958 1057 19958 1355 6000 3700 19958 19958 19958 19958 19958 19958 17815 14421 12135 10147 8455

8-15 125 381 19958 1247 19958 1525 6000 3500 19958 19958 19958 19958 19958 16463 13661 11417 9467 8060

8-20 125 508 19958 1438 19958 1716 6000 3300 19958 19958 19958 19958 19060 15664 12882 10684 9029 7652

9-5 150 127 28849 1025 28849 1343 6000 4700 28849 28849 28849 28849 28849 28849 28849 28849 26263 22275 18714

9-10 150 254 28849 1215 28849 1533 6000 4500 28849 28849 28849 28849 28849 28849 28849 24855 20920 18133

9-15 150 381 28849 1406 28849 1724 6000 4400 28849 28849 28849 28849 28849 28849 27713 23425 20277 17171

9-20 150 508 28849 1596 28849 1914 6000 4200 28849 28849 28849 28849 28849 28849 26223 22338 19245 16195

10-5 200 127 51256 1192 51256 1528 6000 4600 51256 51256 51256 51256 51256 51256 51256 46950 40927 35472

10-10 200 254 51256 1382 51256 1718 6000 4400 51256 51256 51256 51256 51256 51256 51240 44258 38844 33479

10-15 200 381 51256 1573 51256 1909 6000 4300 51256 51256 51256 51256 51256 51256 48961 42527 36710 31943

10-20 200 508 51256 1763 51256 2099 6000 4100 51256 51256 51256 51256 51256 46790 40357 35056 30359

11-5 250 127 85231 1346 85231 1699 6000 5600 85231 85231 85231 85231 85231 85231 85231 85231 85231 79430

11-10 250 254 85231 1524 85231 1877 6000 5400 85231 85231 85231 85231 85231 85231 85231 85231 84344 76868

11-15 250 381 85231 1702 85231 2055 6000 5200 85231 85231 85231 85231 85231 85231 85231 81579 74198

11-20 250 508 85231 1880 85231 2233 6000 5000 85231 85231 85231 85231 85231 85231 85231 78913 70777

203


HYDRAULIC SNUBBER N, mm

204

L (No adjustment)

DE

ØB

C

ØA PIN

L ± 50 mm

ØA PIN

DE

ØB

C





Bore Stroke A B C D E L (mm) Weight L (mm) @ L = @ L =


Size


or mm mm mm mm mm mm mm Closed Stroke Ext. N Fully Fully Fully N N


1-5 20 127 10 38 9 29 73 442 506 569 58 628 755 2000 61 78

1-10 20 254 10 38 9 29 73 633 760 887 67 819 1073 2000 70 84

2-5 25 127 10 38 9 35 79 463 526 590 78 655 782 2500 81 111

2-10 25 254 10 38 9 35 79 653 780 907 91 845 1099 2500 94 121

3-5 40 127 15 50 12 32 76 518 582 645 98 723 850 4500 108 273

3-10 40 254 15 50 12 32 76 709 836 963 120 914 1168 4000 130 264

3-15 40 381 15 50 12 32 76 899 1090 1280 142 1104 1485 4000 152 278

4-5 50 127 20 70 16 38 83 572 636 699 137 783 910 5000 151 374

4-10 50 254 20 70 16 38 83 763 890 1017 169 974 1228 5000 183 396

4-15 50 381 20 70 16 38 83 953 1144 1334 201 1164 1545 5000 215 418

4-20 50 508 20 70 16 38 83 1144 1398 1652 233 1355 1863 4500 246 413

5-5 65 127 25 82 20 44 89 618 681 745 192 844 971 6000 213 591

5-10 65 254 25 82 20 44 89 808 935 1062 237 1034 1288 6000 258 622

5-15 65 381 25 82 20 44 89 999 1189 1380 282 1225 1606 6000 303 653

5-20 65 508 25 82 20 44 89 1189 1443 1697 327 1415 1923 6000 348 684

6-5 80 127 35 110 25 57 102 741 805 868 369 976 1103 6000 402 965

6-10 80 254 35 110 25 57 102 941 1068 1195 445 1176 1430 6000 478 1018

6-15 80 381 35 110 25 57 102 1141 1332 1522 521 1376 1757 6000 553 1071

6-20 80 508 35 110 25 57 102 1341 1595 1849 596 1576 2084 6000 629 1124

7-5 100 127 40 130 28 64 108 771 835 898 470 1030 1157 6000 518 1264

7-10 100 254 40 130 28 64 108 962 1089 1216 552 1221 1475 6000 600 1317

7-15 100 381 40 130 28 64 108 1152 1343 1533 633 1411 1792 6000 681 1369

7-20 100 508 40 130 28 64 108 1343 1597 1851 714 1602 2110 6000 762 1422

8-5 125 127 50 150 35 83 127 866 930 993 865 1144 1271 6000 948 2018

8-10 125 254 50 150 35 83 127 1057 1184 1311 1027 1335 1589 6000 1110 2138

8-15 125 381 50 150 35 83 127 1247 1438 1628 1189 1525 1906 6000 1272 2258

8-20 125 508 50 150 35 83 127 1438 1692 1946 1351 1716 2224 6000 1434 2378

9-5 150 127 70 220 49 95 140 1025 1088 1152 1390 1343 1470 6000 1553 2982

9-10 150 254 70 220 49 95 140 1215 1342 1469 1597 1533 1787 6000 1761 3132

9-15 150 381 70 220 49 95 140 1406 1596 1787 1805 1724 2105 6000 1968 3282

9-20 150 508 70 220 49 95 140 1596 1850 2104 2013 1914 2422 6000 2176 3432

10-5 200 127 80 250 55 121 165 1192 1255 1319 2716 1528 1655 6000 2954 4845

10-10 200 254 80 250 55 121 165 1382 1509 1636 3064 1718 1972 6000 3302 5113

10-15 200 381 80 250 55 121 165 1573 1763 1954 3412 1909 2290 6000 3650 5381

10-20 200 508 80 250 55 121 165 1763 2017 2271 3759 2099 2607 6000 3998 5649

11-5 250 127 90 280 60 160 205 1346 1410 1473 4909 1699 1826 6000 5334 8097

11-10 250 254 90 280 60 160 205 1524 1651 1778 5406 1877 2131 6000 5830 8481

11-15 250 381 90 280 60 160 205 1702 1892 2083 5903 2055 2436 6000 6327 8865

11-20 250 508 90 280 60 160 205 1880 2134 2388 6399 2233 2741 6000 6824 9249


HYDRAULIC SNUBBER N, mm

205


Max.Closed

Centres Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max.

for Max. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp.

Comp. Load Load Load Load Load Load Load Load Load Load Load Load

Snubber Load = at at at at at at at at at at at at

Size Max. Max. Min. Max. Full Closed Closed Closed Closed Closed Closed Closed Closed Closed Closed Closed Closed

Fig. 516 – Cylinder Rated Closed Rated Closed Closed Rated Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. =

or Bore Cylinder Tensile Centres Comp. Centres Centres Tensile Min. 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000Fig. 517 – Size Stroke Load (L) Load (L) (L) Load mm mm mm mm mm mm mm mm mm mm mm

mm mm kN mm kN mm mm mm kN kN kN kN kN kN kN kN kN kN kN kN

1-5 20 127 3.28 442 3.28 628 2000 1100 3.28 3.28 2.07 1.21

1-10 20 254 3.28 633 2.07 819 2000 n/a 2.07 1.98 1.77 0.99

2-5 25 127 6.38 463 6.38 655 2500 1200 6.38 6.38 4.59 2.80 1.76

2-10 25 254 6.38 653 5.18 845 2500 n/a 5.18 5.04 3.85 2.39 1.49

3-5 40 127 17.35 518 17.35 723 4500 2000 17.35 17.35 17.35 17.35 12.75 8.84 6.72 4.80 3.80

3-10 40 254 17.35 709 10.98 914 4000 n/a 10.98 10.82 10.17 9.66 9.21 8.14 6.13 4.45

3-15 40 381 17.35 899 5.57 1104 4000 n/a 5.57 5.15 4.73 4.37 4.04 3.73 3.43

4-5 50 127 31.14 572 31.14 783 5000 1900 31.14 31.14 31.14 30.18 20.06 13.99 10.58 8.33 6.48 4.92

4-10 50 254 31.14 763 27.96 974 5000 n/a 27.96 27.83 26.82 26.05 17.72 13.05 9.73 7.67 5.63 4.57

4-15 50 381 31.14 953 16.00 1164 5000 n/a 16.00 15.49 14.79 14.21 11.48 8.86 7.00 5.24 4.29

4-20 50 508 31.14 1144 9.70 1355 4500 n/a 9.70 9.55 8.94 8.42 7.97 7.56 6.25 4.84

5-5 65 127 48.93 618 48.93 844 6000 2300 48.93 48.93 48.93 48.93 43.50 31.30 23.75 18.12 14.35 11.70 9.42 7.40

5-10 65 254 48.93 808 48.93 1034 6000 2100 48.93 48.93 48.93 39.20 29.00 21.61 16.95 13.25 11.00 8.69 7.02

5-15 65 381 48.93 999 35.32 1225 6000 n/a 35.32 34.50 33.38 32.45 25.80 19.44 15.74 12.13 10.19 8.39 6.58

5-20 65 508 48.93 1189 22.93 1415 6000 n/a 22.93 22.69 21.66 20.81 20.06 18.12 14.50 11.71 9.45 7.29 6.13

6-5 80 127 78.29 741 78.29 976 6000 2700 78.29 78.29 78.29 78.29 78.29 67.09 51.34 39.90 31.35 25.59 21.25 17.67

6-10 80 254 78.29 941 78.29 1176 6000 2600 78.29 78.29 78.29 78.29 61.86 46.45 36.57 29.48 23.84 19.60 16.72

6-15 80 381 78.29 1141 78.29 1376 6000 2400 78.29 78.29 78.29 76.58 56.74 42.82 34.47 27.56 22.06 17.93 15.62

6-20 80 508 78.29 1341 77.07 1576 6000 n/a 77.07 75.14 70.57 51.97 40.64 31.08 25.57 20.24 17.41 14.60

7-5 100 127 125.44 771 125.44 1030 6000 3000 125.44 125.44 125.44 125.44 125.44 101.04 79.83 62.60 51.04 43.20 35.56

7-10 100 254 125.44 962 125.44 1221 6000 2900 125.44 125.44 125.44 125.44 121.11 94.40 73.50 60.06 48.64 40.92 33.39

7-15 100 381 125.44 1152 125.44 1411 6000 2800 125.44 125.44 125.44 125.44 112.39 87.71 68.92 55.71 46.20 38.61 31.21

7-20 100 508 125.44 1343 123.22 1602 6000 n/a 123.22 120.70 118.04 104.13 81.23 66.06 53.06 43.73 36.28 30.64

8-5 125 127 195.72 866 195.72 1144 6000 3800 195.72 195.72 195.72 195.72 195.72 195.72 185.06 151.27 123.24 103.48 89.19

8-10 125 254 195.72 1057 195.72 1335 6000 3700 195.72 195.72 195.72 195.72 195.72 195.72 174.71 141.42 119.00 99.51 82.91

8-15 125 381 195.72 1247 195.72 1525 6000 3500 195.72 195.72 195.72 195.72 195.72 161.45 133.97 111.97 92.84 79.04

8-20 125 508 195.72 1438 195.72 1716 6000 3300 195.72 195.72 195.72 195.72 186.92 153.61 126.33 104.77 88.54 75.04

9-5 150 127 282.91 1025 282.91 1343 6000 4700 282.91 282.91 282.91 282.91 282.91 282.91 282.91 282.91 257.55 218.45 183.52

9-10 150 254 282.91 1215 282.91 1533 6000 4500 282.91 282.91 282.91 282.91 282.91 282.91 282.91 243.75 205.16 177.83

9-15 150 381 282.91 1406 282.91 1724 6000 4400 282.91 282.91 282.91 282.91 282.91 282.91 271.77 229.72 198.85 168.39

9-20 150 508 282.91 1596 282.91 1914 6000 4200 282.91 282.91 282.91 282.91 282.91 282.91 257.16 219.06 188.73 158.82

10-5 200 127 502.65 1192 502.65 1528 6000 4600 502.65 502.65 502.65 502.65 502.65 502.65 502.65 460.43 401.35 347.86

10-10 200 254 502.65 1382 502.65 1718 6000 4400 502.65 502.65 502.65 502.65 502.65 502.65 502.49 434.03 380.93 328.32

10-15 200 381 502.65 1573 502.65 1909 6000 4300 502.65 502.65 502.65 502.65 502.65 502.65 480.14 417.05 360.00 313.26

10-20 200 508 502.65 1763 502.65 2099 6000 4100 502.65 502.65 502.65 502.65 502.65 458.85 395.76 343.78 297.72

11-5 250 127 835.83 1346 835.83 1699 6000 5600 835.83 835.83 835.83 835.83 835.83 835.83 835.83 835.83 835.83 778.95

11-10 250 254 835.83 1524 835.83 1877 6000 5400 835.83 835.83 835.83 835.83 835.83 835.83 835.83 835.83 827.13 753.82

11-15 250 381 835.83 1702 835.83 2055 6000 5200 835.83 835.83 835.83 835.83 835.83 835.83 835.83 800.02 727.64

11-20 250 508 835.83 1880 835.83 2233 6000 5000 835.83 835.83 835.83 835.83 835.83 835.83 835.83 773.88 694.09


L (No adjustment)

DE

ØB

C

ØA PIN

L ± 50 mm

ØA PIN

DE

ØB

C



HYDRAULIC SNUBBER lbs, in

206



Bore Stroke A B C D E L (in) Weight L (in) @ L = @ L =


Size


or in in in in in in in Closed Stroke Ext. lbs Fully Fully Fully lbs lbs


1-5 3/4 5 0.39 1.50 0.35 1.125 2.875 17.41 19.91 22.41 13 24.7 29.7 79 14 17

1-10 3/4 10 0.39 1.50 0.35 1.125 2.875 24.91 29.91 34.91 15 32.2 42.2 79 16 19

2-5 1 5 0.39 1.50 0.35 1.375 3.125 18.22 20.72 23.22 17 25.8 30.8 98 18 25

2-10 1 10 0.39 1.50 0.35 1.375 3.125 25.72 30.72 35.72 20 33.3 43.3 98 21 27

3-5 1.1/2 5 0.59 1.97 0.47 1.25 3.000 20.41 22.91 25.41 22 28.5 33.5 177 24 61

3-10 1.1/2 10 0.59 1.97 0.47 1.25 3.000 27.91 32.91 37.91 27 36.0 46.0 157 29 59

3-15 1.1/2 15 0.59 1.97 0.47 1.25 3.000 35.41 42.91 50.41 32 43.5 58.5 157 34 62

4-5 2 5 0.79 2.76 0.63 1.5 3.250 22.54 25.04 27.54 31 30.8 35.8 197 34 84

4-10 2 10 0.79 2.76 0.63 1.5 3.250 30.04 35.04 40.04 38 38.3 48.3 197 41 89

4-15 2 15 0.79 2.76 0.63 1.5 3.250 37.54 45.04 52.54 45 45.8 60.8 197 48 94

4-20 2 20 0.79 2.76 0.63 1.5 3.250 45.04 55.04 65.04 52 53.3 73.3 177 55 93

5-5 2.1/2 5 0.98 3.23 0.79 1.75 3.500 24.31 26.81 29.31 43 33.2 38.2 236 48 133

5-10 2.1/2 10 0.98 3.23 0.79 1.75 3.500 31.81 36.81 41.81 53 40.7 50.7 236 58 140

5-15 2.1/2 15 0.98 3.23 0.79 1.75 3.500 39.31 46.81 54.31 63 48.2 63.2 236 68 147

5-20 2.1/2 20 0.98 3.23 0.79 1.75 3.500 46.81 56.81 66.81 74 55.7 75.7 236 78 154

6-5 3.1/4 5 1.38 4.33 0.98 2.25 4.000 29.17 31.67 34.17 83 38.4 43.4 236 90 217

6-10 3.1/4 10 1.38 4.33 0.98 2.25 4.000 37.05 42.05 47.05 100 46.3 56.3 236 107 229

6-15 3.1/4 15 1.38 4.33 0.98 2.25 4.000 44.92 52.42 59.92 117 54.2 69.2 236 124 241

6-20 3.1/4 20 1.38 4.33 0.98 2.25 4.000 52.80 62.80 72.80 134 62.1 82.1 236 141 253

7-5 4 5 1.57 5.12 1.10 2.5 4.250 30.37 32.87 35.37 106 40.6 45.6 236 117 284

7-10 4 10 1.57 5.12 1.10 2.5 4.250 37.87 42.87 47.87 124 48.1 58.1 236 135 296

7-15 4 15 1.57 5.12 1.10 2.5 4.250 45.37 52.87 60.37 142 55.6 70.6 236 153 308

7-20 4 20 1.57 5.12 1.10 2.5 4.250 52.87 62.87 72.87 161 63.1 83.1 236 171 320

8-5 5 5 1.97 5.91 1.38 3.25 5.000 34.11 36.61 39.11 195 45.1 50.1 236 213 454

8-10 5 10 1.97 5.91 1.38 3.25 5.000 41.61 46.61 51.61 231 52.6 62.6 236 250 481

8-15 5 15 1.97 5.91 1.38 3.25 5.000 49.11 56.61 64.11 267 60.1 75.1 236 286 508

8-20 5 20 1.97 5.91 1.38 3.25 5.000 56.61 66.61 76.61 304 67.6 87.6 236 322 535

9-5 6 5 2.76 8.66 1.93 3.75 5.500 40.35 42.85 45.35 312 52.9 57.9 236 349 670

9-10 6 10 2.76 8.66 1.93 3.75 5.500 47.85 52.85 57.85 359 60.4 70.4 236 396 704

9-15 6 15 2.76 8.66 1.93 3.75 5.500 55.35 62.85 70.35 406 67.9 82.9 236 442 738

9-20 6 20 2.76 8.66 1.93 3.75 5.500 62.85 72.85 82.85 452 75.4 95.4 236 489 771

10-5 8 5 3.15 9.84 2.17 4.75 6.500 46.93 49.43 51.93 611 60.2 65.2 236 664 1089

10-10 8 10 3.15 9.84 2.17 4.75 6.500 54.43 59.43 64.43 689 67.7 77.7 236 742 1149

10-15 8 15 3.15 9.84 2.17 4.75 6.500 61.93 69.43 76.93 767 75.2 90.2 236 820 1210

10-20 8 20 3.15 9.84 2.17 4.75 6.500 69.43 79.43 89.43 845 82.7 102.7 236 899 1270

11-5 10 5 3.54 11.02 2.36 6.312 8.062 53.01 55.51 58.01 1104 66.9 71.9 236 1199 1820

11-10 10 10 3.54 11.02 2.36 6.312 8.062 60.01 65.01 70.01 1215 73.9 83.9 236 1311 1907

11-15 10 15 3.54 11.02 2.36 6.312 8.062 67.01 74.51 82.01 1327 80.9 95.9 236 1422 1993

11-20 10 20 3.54 11.02 2.36 6.312 8.062 74.01 84.01 94.01 1439 87.9 107.9 236 1534 2079


HYDRAULIC SNUBBER lbs, in

207

1

2

3

4

5

6

7

8

9

LOAD CAPACITIES OF HYDRAULIC SNUBBERS IN TENSION AND COMPRESSION


Max.Closed

Centres

for Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max.

Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp.

Snubber Load = Load Load Load Load Load Load Load Load Load Load Load Load

Size Max. Max. Min. Max. Full at at at at at at at at at at at at

Fig. 516 – Cylinder Rated Closed Rated Closed Closed Rated Closed Closed Closed Closed Closed Closed Closed Closed Closed Closed Closed Closed

or Bore Cylinder Tensile Centres Comp. Centres Centres Tensile Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Crs. = Fig. 517 – Size Stroke Load (L) Load (L) (L) Load Min. 39 in 59 in 79 in 98 in 118 in 138 in 157 in 177 in 197 in 217 in 236 in

in in lbs in lbs in in in lbs lbs lbs lbs lbs lbs lbs lbs lbs lbs lbs lbs

1-5 3⁄4 5 738 17.41 738 24.7 79 43.3 738 738 466 272

1-10 3⁄4 10 738 24.91 465 32.2 79 n/a 465 446 398 222

2-5 1 5 1434 18.22 1434 25.8 98 47.2 1434 1434 1031 629 396

2-10 1 10 1434 25.72 1165 33.3 98 n/a 1165 1133 865 538 335

3-5 11⁄2 5 3900 20.41 3900 28.5 177 78.7 3900 3900 3900 3900 2866 1988 1510 1079 855

3-10 11⁄2 10 3900 27.91 2468 36.0 157 n/a 2468 2432 2287 2172 2071 1830 1378 1001

3-15 11⁄2 15 3900 35.41 1253 43.5 157 n/a 1253 1159 1064 982 908 838 772

4-5 2 5 7000 22.54 7000 30.8 197 74.8 7000 7000 7000 6785 4510 3145 2379 1873 1457 1106

4-10 2 10 7000 30.04 6285 38.3 197 n/a 6285 6257 6030 5856 3983 2935 2187 1725 1266 1028

4-15 2 15 7000 37.54 3597 45.8 197 n/a 3597 3482 3325 3194 2581 1991 1573 1178 965

4-20 2 20 7000 45.04 2180 53.3 177 n/a 2180 2147 2009 1894 1793 1700 1406 1087

5-5 21⁄2 5 11000 24.31 11000 33.2 236 90.6 11000 11000 11000 11000 9780 7036 5340 4074 3226 2631 2118 1664

5-10 21⁄2 10 11000 31.81 11000 40.7 236 82.7 11000 11000 11000 8812 6519 4857 3809 2978 2472 1953 1577

5-15 21⁄2 15 11000 39.31 7941 48.2 236 n/a 7941 7756 7505 7294 5801 4370 3537 2727 2291 1887 1478

5-20 21⁄2 20 11000 46.81 5155 55.7 236 n/a 5155 5102 4870 4678 4509 4074 3259 2633 2124 1639 1377

6-5 31⁄4 5 17600 29.17 17600 38.4 236 106.3 17600 17600 17600 17600 17600 15082 11542 8971 7048 5753 4778 3973

6-10 31⁄4 10 17600 37.05 17600 46.3 236 102.4 17600 17600 17600 17600 13906 10441 8221 6628 5360 4406 3759

6-15 31⁄4 15 17600 44.92 17600 54.2 236 94.5 17600 17600 17600 17216 12755 9627 7748 6195 4959 4031 3511

6-20 31⁄4 20 17600 52.80 17325 62.1 236 n/a 17325 16892 15865 11682 9136 6986 5749 4551 3914 3283

7-5 4 5 28200 30.37 28200 40.6 236 118.1 28200 28200 28200 28200 28200 22714 17947 14074 11474 9712 7994

7-10 4 10 28200 37.87 28200 48.1 236 114.2 28200 28200 28200 28200 27226 21223 16522 13502 10935 9199 7507

7-15 4 15 28200 45.37 28200 55.6 236 110.2 28200 28200 28200 28200 25266 19719 15493 12523 10387 8679 7017

7-20 4 20 28200 52.87 27701 63.1 236 n/a 27701 27135 26537 23410 18262 14851 11929 9831 8155 6888

8-5 5 5 44000 34.11 44000 45.1 236 149.6 44000 44000 44000 44000 44000 44000 41603 34006 27704 23262 20051

8-10 5 10 44000 41.61 44000 52.6 236 145.7 44000 44000 44000 44000 44000 44000 39275 31792 26752 22370 18640

8-15 5 15 44000 49.11 44000 60.1 236 137.8 44000 44000 44000 44000 44000 36294 30117 25171 20872 17770

8-20 5 20 44000 56.61 44000 67.6 236 129.9 44000 44000 44000 44000 42021 34533 28401 23554 19905 16869

9-5 6 5 63600 40.35 63600 52.9 236 185.0 63600 63600 63600 63600 63600 63600 63600 63600 57900 49108 41257

9-10 6 10 63600 47.85 63600 60.4 236 177.2 63600 63600 63600 63600 63600 63600 63600 54796 46121 39977

9-15 6 15 63600 55.35 63600 67.9 236 173.2 63600 63600 63600 63600 63600 63600 61095 51643 44702 37854

9-20 6 20 63600 62.85 63600 75.4 236 165.4 63600 63600 63600 63600 63600 63600 57811 49246 42428 35703

10-5 8 5 113000 46.93 113000 60.2 236 181.1 113000 113000 113000 113000 113000 113000 113000 103507 90227 78202

10-10 8 10 113000 54.43 113000 67.7 236 173.2 113000 113000 113000 113000 113000 113000 112964 97572 85636 73808

10-15 8 15 113000 61.93 113000 75.2 236 169.3 113000 113000 113000 113000 113000 113000 107939 93755 80931 70422

10-20 8 20 113000 69.43 113000 82.7 236 161.4 113000 113000 113000 113000 113000 103152 88970 77285 66929

11-5 10 5 187900 53.01 187900 66.9 236 220.5 187900 187900 187900 187900 187900 187900 187900 187900 187900 175112

11-10 10 10 187900 60.01 187900 73.9 236 212.6 187900 187900 187900 187900 187900 187900 187900 187900 185944 169464

11-15 10 15 187900 67.01 187900 80.9 236 204.7 187900 187900 187900 187900 187900 187900 187900 179849 163578

11-20 10 20 187900 74.01 187900 87.9 236 196.9 187900 187900 187900 187900 187900 187900 187900 173973 156036


20810 pages 195-260.qxd:s9 dynamic restraints 28/9/11 … restraints... · dynamic restraints the...

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